## Introduction to Xiaomi Home Assistant
The Xiaomi Home Assistant is a smart home system that integrates various devices, including doorbells, cameras, and sensors, to provide a seamless and automated living experience. However, users have reported errors and limitations in the system, particularly with regards to doorbell-related operations and motion detection.
## Error Description
The error message "无法执行动作switch/turn_on" (Unable to execute action "switch/turn_on") with code -704002000 has been reported by users. This error occurs when trying to perform doorbell-related operations, such as turning on the doorbell or switching to a different mode. The error message indicates an unknown error, and the system fails to execute the desired action.
## Motion Detection Limitations
Another limitation reported by users is the lack of support for motion detection in the Xiaomi Home Assistant. While other devices, such as the Unifi G4 doorbell, support motion detection, the Xiaomi doorbell does not seem to have this feature. This limitation restricts the automation capabilities of the system, as users are unable to trigger actions based on motion detection.
## Reproduction Steps
To reproduce the error, simply try to perform a doorbell-related operation, such as turning on the doorbell or switching to a different mode. The system will display an error message, and the action will not be executed.
## Expected Behavior
The expected behavior is for the system to execute the desired action, such as turning on the doorbell or switching to a different mode, without displaying an error message.
## System Information
The error has been reported on the following system configuration:
* Home Assistant Core Version: 2025.9.1
* Home Assistant Operation System Version: 16.2
* Xiaomi Home Integration Version: v0.4.2
* Log Timezone: Asia/Shanghai
## Conclusion
The Xiaomi Home Assistant error and limitation in motion detection are significant issues that need to be addressed. Users expect a seamless and automated living experience, and these errors and limitations restrict the system's capabilities. It is essential to investigate and resolve these issues to provide a better user experience.